You Filed Q1 - Now What Happens to the Paperwork?

Filing your first MTD quarterly update feels like crossing a finish line. But the receipts, invoices, bank statements, and notes you used to get there are still sitting in a pile - on your desk, in your downloads folder, or scattered across your phone photos. What you do with them in the next few days matters more than most people realise. A tidy filing system built right after Q1 is the foundation that stops Q2 turning into the same frantic scramble. This guide covers exactly how to set one up, whether you prefer paper, digital, or a bit of both.

Why Filing Right After Q1 Matters

Most people file their Q1 update, breathe a sigh of relief, and move on. The documents get forgotten. Then Q2 arrives, and they spend hours hunting for a phone photo of a receipt, trying to remember which bank statement covered April, or digging through email for an invoice they half-remember sending.

There is a second reason to take this seriously. HMRC can open a compliance check on your returns, sometimes years after you filed. When that happens, you need to be able to produce the actual documents that support the figures you submitted - not a vague memory of them. A well-organised archive is your evidence.

If you want to understand what HMRC might ask for and why, see our guide on preparing records for HMRC enquiries after your Q1 filing.

What Records You Are Actually Organising

Before you build a system, it helps to list what you are storing. After Q1, the documents that need a home typically include:

You do not need to organise every piece of paper you have ever touched - just the documents that relate to income or expenses you included in Q1. If you are unsure whether a document is relevant, err on the side of keeping it.

For a detailed breakdown of what HMRC expects sole traders to hold onto, see our HMRC evidence guide for sole traders.

How Long You Need to Keep These Records

HMRC requires you to keep records for at least five years after the 31 January submission deadline for the relevant tax year. For the 2026-27 tax year (which Q1 falls into), that means keeping records until at least 31 January 2033.

This applies to both digital records and physical ones. It is not enough to keep the bank statement but throw away the receipt, or vice versa. You need the documents that support each line of income and expenditure.

See our full post on MTD record retention rules for more detail on this.

Setting Up Your Digital Folder Structure

A digital filing system is the most practical choice for most people. It takes up no physical space, can be searched instantly, and can be backed up automatically. Here is a simple folder structure that works for both sole traders and landlords.

Top-level folder

Create one master folder for all your MTD records. Name it something like:

MTD - Tax Records

Year folders inside that

Inside the master folder, create a folder for each tax year. Tax years run from 6 April to 5 April, so:

Quarter folders inside each year

Inside each year folder, create four folders - one per quarter:

Sub-folders inside each quarter

Inside each quarter folder, keep things simple. You do not need dozens of sub-folders. Start with these:

The Submission folder is where you save a copy of your completed quarterly update - either a PDF export from your software, a screenshot, or any confirmation from HMRC. This gives you a record of exactly what figures you filed.

File naming that actually helps you find things

File names matter. "Receipt.jpg" tells you nothing six months later. Use a format that includes the date, supplier, and amount:

YYYY-MM-DD - Supplier Name - £Amount

For example:

Starting with the date in year-month-day order means files automatically sort chronologically when you view a folder. That makes it much easier to match documents to your bank statement line by line.

Note: If your expenses span multiple income types - for example, you are both self-employed and a landlord - consider adding separate sub-folders for each: one for self-employment documents and one for property income documents. This keeps them cleanly separated and makes your final declaration straightforward. See our guide on MTD for landlords with mixed income for more on this.

Cloud Backup: Do Not Rely on a Single Device

Storing files on your laptop or phone is not enough. Devices get lost, stolen, or simply fail. If your hard drive dies and you have no backup, your Q1 records are gone.

Use a cloud storage service to automatically sync your MTD folder. Options include Google Drive, Dropbox, iCloud, OneDrive, and others - pick whichever you already use. The key is that files sync automatically without you having to remember to back them up.

How to set this up in one go

  1. Create your folder structure (as above) inside a folder that is already synced to cloud storage - or move your existing folder there.
  2. Check that your cloud service shows the folder as synced (usually indicated by a tick icon).
  3. On your phone, install the same cloud storage app and enable automatic photo upload if you photograph receipts on your phone. This means a photo taken on your phone goes straight to the cloud, where you can then move it to the right quarter folder.

Once this is set up, you are protected against device failure with no ongoing effort.

Keep an offline backup too

For records you intend to keep for five years, a second copy is sensible. An external hard drive or USB stick that you update every quarter is enough. This is especially useful if you are storing large numbers of images or PDFs.

Scanning and Photographing Physical Documents

Physical receipts fade, get lost in pockets, and disintegrate. HMRC accepts digital copies of physical documents, so it is worth scanning or photographing anything paper-based as soon as you receive it.

Getting a good scan from your phone

Once a receipt is scanned and saved to the correct quarter folder, you can discard the paper copy - though some people prefer to keep originals for a year as a belt-and-braces measure.

Physical Filing: If You Prefer Paper

Some people work better with physical folders. There is nothing wrong with that. The same logic applies - organise by year, then by quarter, then by document type.

What you need

Practical tips for physical filing

Warning: Physical-only filing carries real risks. Receipts fade, paper gets damaged, and files can be lost in a flood or fire. If you file physically, still take a photo of each key document and save it to cloud storage as a backup. You do not need both systems to be perfect - you just need to be able to produce the evidence if HMRC asks for it.

Organising Your Q1 Submission Copy

One document many people forget to keep is a record of what they actually filed. After you submit your Q1 quarterly update, save a copy of the submitted figures. This might be:

Store this in your Q1 Submission sub-folder. If you later need to amend your update or compare it to Q2 figures, having an exact record of what you filed is invaluable. See our guide on amending a quarterly update after submission if you realise something needs correcting.

What to Do Right Now - Before Q2 Gets Going

The best time to organise your Q1 records is immediately after filing - while everything is still fresh and documents are still findable. Here is a simple action list to work through:

  1. Create your top-level folder structure (as described above) if you do not have one.
  2. Move all Q1 income documents into the Income sub-folder.
  3. Move all Q1 expense documents into the Expenses sub-folder.
  4. Download and save your bank statements for April, May, and June to the Bank Statements sub-folder.
  5. Save a copy of your submitted Q1 update to the Submission sub-folder.
  6. Scan any paper receipts you have not already digitalised.
  7. Check your cloud storage is syncing correctly.

This process should take between 30 minutes and two hours depending on how organised you were during Q1. Do it once now and Q2 becomes far easier.

How Good Organisation Now Protects You During an HMRC Enquiry

HMRC can open a compliance check into your returns. When they do, they typically ask for supporting documents to verify the figures you filed. If you have a well-organised filing system, you can respond quickly and confidently. If your records are scattered across multiple devices, email inboxes, and shoeboxes, it becomes a stressful and time-consuming exercise.

The documents most commonly requested in an enquiry are invoices and receipts for expenses, evidence of business income, bank statements showing transactions, and mileage logs if you claimed mileage. All of these should be in your organised Q1 folder, ready to produce at short notice.

For more on what HMRC compliance checks look like and how to handle them, see our post on HMRC compliance enquiries after MTD Q1 filing.

Building Good Habits for Q2

Now that Q1 is filed and filed away, the goal is to avoid repeating the last-minute scramble in Q2. The simplest way to do that is to file documents as they arrive, rather than saving them up for the week before the deadline.

Your Q2 folder is already created (you made it when you set up the structure above). As soon as a new invoice, receipt, or bank statement comes in, drop it in the right folder immediately. It takes 30 seconds per document and eliminates the pre-deadline panic entirely.

If you want a specific weekly routine to keep this manageable, see our post on a 15-minute-a-week record-keeping system for Q2.

Keep your Q2 records tidy from day one

AffordableMTD lets you upload expense records, categorise income, and keep everything in one place ready for your next quarterly update - no accounting knowledge needed.

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Summary

Filing Q1 is done. The next step is making sure the records that supported it are stored somewhere you can actually find them. Set up a simple folder structure - by year, then quarter, then document type - store it in cloud-synced storage, scan any paper receipts, and save a copy of what you submitted. Do that now, before Q2 gets underway, and you will have a system that works for every quarter from here on. Good organisation is not about being tidy for its own sake - it is about being able to prove what you filed if HMRC ever asks.